nickel
thusspakezuska | April 30, 2009What's a good citizen to do if he or she thinks that cough and sneeze is swine flu? The Centers for Disease Control and Prevention recommends:
Stay home if you get sick. CDC recommends that you stay home from work or school and limit contact with others to keep from infecting them.
This afternoon I've been reading Nickel and Dimed: On Not Getting By in America by Barbara Ehrenreich - which is ever so more relevant now, if that were possible, than when it was originally released. Near the end she notes:
It is common, among the nonpoor, to think of poverty as a sustainable condition -…
esiegel | April 7, 2008What's going to happen to all the stars in the Universe as they get older? Well, just as nothing can live forever, stars can't live forever also. Why? Because they run on fuel: burning hydrogen into helium, for example. When they run out of fuel, something's gotta give. Barbara Ryden reminds us of an excellent and appropriate quote by Dylan Thomas:
Do not go gentle into that good night.
Rage, rage against the dying of the light.
But what exactly happens to the star depends very sensitively on what the mass of the star is.
If you've got a tiny little star, less than about 40% of the mass of…